package com.hxz.countdownlatch;

import java.util.concurrent.CountDownLatch;

public class CountDownLatchDemo {
    public static void main(String[] args) throws InterruptedException {
        CountDownLatch countDownLatch = new CountDownLatch(6);
        for (int i = 1; i <=6 ; i++) {
            new Thread(()->{
                System.out.println(Thread.currentThread().getName()+"Go Out!");
                countDownLatch.countDown();
            }, String.valueOf(i)).start();
        }
        countDownLatch.await();
        System.out.println("Close Door");
    }
}
